164 



width; upper eyelid much narrower than inter orbital width; distance between 

 nostril and snout contained two and one-half times in distance from nostril 

 to eye; canthus rostralis rounded; loreal region slightly convex; tympanum 

 distinct, two-thirds the diameter of the eye, separated from the eye by less than 

 one-half its own diameter; heels touch when legs are at right angles to the body; 

 digits scarcely dilated; no webs; second finger longer than first; no tarsal fold; 

 metatarsal tubercles poorly developed; a series of elongate glandular elevations 

 forms a dorso-lateral fold from tympanum to groin; sides below this with lines 

 of glands; a few smaller glands on back, especially two such on the scapular 

 region; center of belly smooth, sides coarsely granular; throat and chest 

 developed into vocal sac; a discoidal ventral fold; under sides of thighs heavily 

 granular; vomerine teeth from outer edge of choanae curving inward, inner 

 end at level of outer, separated from fellow by two-thirds length of series, and 

 from choanae by one-third length of series. Color, light brown; band between 

 eyes, warts on shoulders and band in front of sacrum, dark; two bars on tibia; 

 a white line under eye; a white spot at hinder, lower corner of tympanum; 

 sides pale; below white. Length 14 mm.; head 5; tibia 7; leg 19; arm 7.5. 



Variation. — Several specimens have an inverted V on shoulders; vomerine 

 teeth may begin below middle of choanae, and be separated from those of 

 opposite side by one-half length of series and from choanae by same distance. 



Paratypes: Mus. Comp. Zo5l. Nos. 10599-600, 105602, from Soledad; 

 10603-4 from Guabairo. 



The species around Soledad which is arboreal and whose call 

 can be heard in loud choruses for some distance, is clearly related 

 to E. auriculatus from eastern Cuba, but is as clearly different. 

 The diagnostic characters must be understood as applying to 

 specimens from Oriente and from Soledad, and not necessarily 

 applying to the Santo Domingan or Porto Rican forms. 



Eleutherodactylus sonans, sp. nov. 



Type. — Adult male, Museum of Comparative Zoology, No. 10609, from 

 Soledad, Cuba. Collected by E. R. Dunn. July-August, 1924. 



Diagnosis. — Closely related to E. auriculatus, but differing in its smaller 

 size; smaller tympanum (one-third rather than one-half the diameter of the 

 eye) ; disks of fingers and toes not all same size, largest equal the tympanum in 

 diameter rather than one-third its diameter; heel not to middle of eye; heels 

 barely touching when appressed; tip of toe V not reaching penultimate tubercle 

 of toe IV, instead of beyond it; tip of toe I not reaching disk of toe II; vomerine 

 series shorter. 



Description (Mus. Comp. Zool., No. 10609, adult male). — Head as long as 

 broad, broader than body; distance from eye to nostril shorter than diameter 

 of eye and equal to interorbital space; equal to twice the distance from snout 

 to nostril; canthus rostralis sharp; lores flat, sloping; tympanum one-third the 

 diameter of eye, separated from eye by its own diameter; heels touching when 

 appressed; heel reaching to eye; disks of fingers III and IV, and of toe IV as 

 large as tympanum, twice as large as disks of fingers I and II and toes I, II, III, 

 a,nd V; tip of toe V not reaching penultimate tubercle of toe IV; tip of toe I 

 reaching disk of toe II; finely rugose above; two scapular warts; a supra-tym- 

 panic fold; a short fold obliquely upward from tympanum to middle of side 

 followed by warts forming a curved dorso-lateral fold convex upward; belly 

 granular; a fold across chest; a subgular vocal sac; vomerine teeth beginning 

 in from inner edge of choanae; separated from fellow by one and one-half times 

 length of series and from nares by same distance. Color, dark brown; a 



